esyslog: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/lib/rc/bin/esyslog - from package: openrc

You may install the required package with command apt-get install {package}

Error in other languages:
esyslog: bevel nie gevind nie
esyslog: comandă negăsită
esyslog: comando não encontrado
esyslog: commande introuvable
esyslog: command not found
esyslog: käsku ei ole
esyslog: không tìm thấy lệnh
esyslog: komanda nerasta
esyslog: Kommando nicht gefunden.
esyslog: kommandot finns inte
esyslog: komut yok
esyslog: nie znaleziono polecenia
esyslog: níor aimsíodh an t-ordú
esyslog: no se encontró la orden
esyslog: no s'ha trobat l'ordre
esyslog: opdracht niet gevonden
esyslog: parancs nem található
esyslog: perintah tidak ditemukan
esyslog: príkaz nenájdený
esyslog: příkaz nenalezen
esyslog: команда не найдена
esyslog: командата не е открита
esyslog: 命令找不到
esyslog: コマンドが見つかりません